Question

我有一个相当简单的if语句，每次通过语句时都会设置几个变量。我遇到一个问题，当它到达AgentsAvailable == 0或点击else语句时，它无法恢复到以前的任何语句。有人可以提供一些方法来帮助它，以便每当其中一个陈述为真且不会卡住时，语句就会正确循环。

我的if声明：

if (e.CmsData.Skill.AgentsAvailable > 0)
{
    Dispatcher.BeginInvoke(DispatcherPriority.Normal, (Action)(() => {
        callsWaitingData.Text = e.CmsData.Skill.AgentsAvailable.ToString();
        callsWaitingData.Foreground = new SolidColorBrush(Colors.Green);
        callsWaitingText.Text = "Available";
        longestWaitingData.Text = max.ToString();
        longestWaitingText.Text = "Available";
        callimgae.Source = new BitmapImage(new Uri("pack://application:,,,/ScoreBoardClientTest;component/images/circle_green.png", UriKind.Absolute));
    }));
}
else if (e.CmsData.Skill.InQueueInRing > 5)
{
    Dispatcher.BeginInvoke(DispatcherPriority.Normal, (Action)(() => {
        callsWaitingData.Text = e.CmsData.Skill.InQueueInRing.ToString();
        callsWaitingData.Foreground = new SolidColorBrush(Colors.Red);
        callsWaitingText.Text = "Waiting";
        longestWaitingData.Text = e.CmsData.Skill.OldestCall.ToString().Substring(3);
        longestWaitingText.Text = "Waiting";
        timer = new System.Threading.Timer(OnTimerEllapsed, new object(), 0, 2000);
    }));
}
else if (e.CmsData.Skill.InQueueInRing > 0)
{
    Dispatcher.BeginInvoke(DispatcherPriority.Normal, (Action)(() => {
        callsWaitingData.Text = e.CmsData.Skill.InQueueInRing.ToString();
        callsWaitingData.Foreground = new SolidColorBrush(Colors.Red);
        callsWaitingText.Text = "Waiting";
        longestWaitingData.Text = e.CmsData.Skill.OldestCall.ToString().Substring(3);
        longestWaitingText.Text = "Waiting";
        callimgae.Source = new BitmapImage(new Uri("pack://application:,,,/ScoreBoardClientTest;component/images/circle_red.png", UriKind.Absolute));
    }));
}
else if (e.CmsData.Skill.AgentsAvailable == 0)
{
    Dispatcher.BeginInvoke(DispatcherPriority.Normal, (Action) (() =>
    {
        callsWaitingData.Text = e.CmsData.Skill.AgentsAvailable.ToString();
        callsWaitingData.Foreground = new SolidColorBrush(Colors.Yellow);
        callsWaitingText.Text = "Available";
        longestWaitingData.Text = max.ToString();
        longestWaitingText.Text = "Available";
        callimgae.Source =
            new BitmapImage(
                new Uri("pack://application:,,,/ScoreBoardClientTest;component/images/circle_yellow.png",
                    UriKind.Absolute));
    }));
}
else
{
    Dispatcher.BeginInvoke(DispatcherPriority.Normal, (Action) (() =>
    {
        callsWaitingData.Text = e.CmsData.Skill.AgentsAvailable.ToString();
        callsWaitingData.Foreground = new SolidColorBrush(Colors.Yellow);
        callsWaitingText.Text = "Available";
        longestWaitingData.Text = max.ToString();
        longestWaitingText.Text = "Available";
        callimgae.Source =
            new BitmapImage(
                new Uri("pack://application:,,,/ScoreBoardClientTest;component/images/circle_yellow.png",
                    UriKind.Absolute));
    }));
}

Answer 1

似乎与if-else陈述的目的有些混淆它们不是循环。它们的目的是为执行特定代码提供条件。满足条件的第一种情况（返回true）将被执行，而其他所有条件都不会被执行。如果您定义else案例，则在以上所有案例都失败时执行。关于此的官方文档可以在here找到。

总结：每次调用上述if-else语句时，只会执行一个个案。回到上述情况并非如此。
如果您对您要做的事情给出更详细的解释，我可以提供进一步的帮助。

此外，我在你的案例中看到了很多重复的代码（例如，最后两个似乎是相同的，使第一个过时）。你应该尽量减少这个。

Answer 2

这与子句的排序有关，并且评估为true的第一个条件是将执行的唯一块。如果您希望某些先前的条件适用，无论是否AgentsAvailable == 0

，您可能需要略微更改逻辑

// *** Agents available logic ***
if (e.CmsData.Skill.AgentsAvailable > 0)
{
    // Stuff that needs to happen if Agents are available
}
else
{
    // Stuff that needs to happen if they're not available
}

// *** Queue ring logic *** (happens regardless of agents available
if (e.CmsData.Skill.InQueueInRing > 5)
{
}
else if (e.CmsData.Skill.InQueueInRing > 0)
{
}
else
{
}

如果只有当代理可用且InQueueInRing为> 5时才需要发生，那么您需要在其中一个if子句中添加内容，例如：

if (e.CmsData.Skill.InQueueInRing > 5)
{
    if (e.CmsData.Skill.AgentsAvailable > 0)
    {
        // Do stuff here that requires agents available
    }
    else
    {
        // If there's some counterpart logic for when 
        // no agents are available, do it here
    }

    // Do other stuff here that doesn't care about agents one way or the
    // other (i.e. stuff that should ALWAYS happen when InQueueInRing > 5
}

有问题突破我的If语句

2 个答案: